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This article applies to: ML v7, ML8, MultiStore

Server Error When Adding Products to the Cart


Symptoms
Customers get a server error "Input string was not in a correct format" error when they try to add a product to the cart.

Cause
This can be caused by not populating the SKU field on all products.

Solution
Either populate the SKU field on all products, or set the AllowEmptySkuAddToCart AppConfig to true.